Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2802dc74a6b819d…

MALICIOUS

PDF

33.4 KB Created: 2021-07-05 18:37:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b6bccccd244088077baaa6afeda15b86 SHA-1: 4f162a5f918ff12278374397be07af85f89c70f3 SHA-256: b2802dc74a6b819d55132a70fbc919f5883a318b1d8d05a39eeeb4761c11002e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/free-robux-hack-us-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/youtube-how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-without-completing-offers_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/apk-hack-roblox-pc_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-coins-in-assassin-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-shirts-and-pants-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/gui-roblox-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/apocalypse-rising-hacks-roblox-crash_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-prevent-fly-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-dislike-bots_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D71 21892 bytes
SHA-256: 550447d4802a9d0652c4aa80985d269bfe43c9218ee18ce2ad5474512d159e8a
font_01_sfnt_off00005dee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEE 18884 bytes
SHA-256: bfc674629a4fdfc233a3c1a19cbee54387e60bd0cdfc4a3107778b42d9fa82d8

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